<template>
  <div class="app-container">
    <!--查询表单-->
    <div class="search-div">
      <el-form label-width="70px" size="small">
        <el-row>
          <el-col :span="24">
            <el-form-item label="角色名称">
              <el-input style="width: 100%" v-model="searchObj.roleName" placeholder="角色名称"></el-input>
            </el-form-item>
          </el-col>
        </el-row>
        <el-row style="display:flex">
          <el-button type="primary" icon="el-icon-search" size="mini" :loading="loading" @click="fetchData()">搜索</el-button>
          <el-button icon="el-icon-refresh" size="mini" @click="resetData">重置</el-button>
          <div class="tools-div">
            <el-button type="success" icon="el-icon-plus" size="mini" @click="add">添 加</el-button>
            <el-button class="btn-add" size="mini" @click="batchRemove()" >批量删除</el-button>
          </div>
        </el-row>
      </el-form>
    </div>

    <!-- 表格 -->
    <el-table
      v-loading="listLoading"
      :data="list"
      stripe
      border
      style="width: 100%;margin-top: 10px;"
      @selection-change="handleSelectionChange"><!-- 复选框在 -->
      <el-table-column type="selection"/>

      <el-table-column
        label="序号"
        width="70"
        align="center">
        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>

      <el-table-column prop="roleName" label="角色名称" />
      <el-table-column prop="roleCode" label="角色编码" />
      <el-table-column prop="createTime" label="创建时间" width="160"/>
      <el-table-column label="操作" width="200" align="center">
        <template slot-scope="scope">
          <el-button type="primary" icon="el-icon-edit" size="mini" @click="edit(scope.row.id)" title="修改"/>
          <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeDataById(scope.row.id)" title="删除"/>
        </template>
      </el-table-column>
    </el-table>
    <!-- 弹出层 -->
    <el-dialog title="添加/修改" :visible.sync="dialogVisible" width="40%" >
      <el-form ref="dataForm" :model="sysRole" label-width="150px" size="small" style="padding-right: 40px;">
        <el-form-item label="角色名称">
          <el-input v-model="sysRole.roleName"/>
        </el-form-item>
        <el-form-item label="角色编码">
          <el-input v-model="sysRole.roleCode"/>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false" size="small" icon="el-icon-refresh-right">取 消</el-button>
        <el-button type="primary" icon="el-icon-check" @click="saveOrUpdate()" size="small">确 定</el-button>
      </span>
    </el-dialog>
    

    <!-- 分页组件 -->
    <el-pagination
        :current-page="page"
        :total="total"
        :page-size="limit"
        style="padding: 30px 0; text-align: center;"
        layout="total, prev, pager, next, jumper"
        @current-change="fetchData"
    />
  </div>
</template>
<script>
//引入定义接口js文件
import api from '@/api/system/sysRole.js'
export default {
    //vue代码结构
    //定义数据模型
    data () {
        return {
            list : [],//列表
            total : 0,//总数
            page : 1, //当前页的页码
            limit : 2,//每页显示的数量
            searchObj : {},//查询条件
            multipleSelection: [],// 批量删除选中的记录列表
            dialogVisible: false,//true 出现弹框， false关闭弹窗
            sysRole: {},//封装表单角色数据
            saveBtnDisabled: false
        }
    },
    //页面渲染之前执行
    created() {
        this.fetchData()
    },
    //定义方法
    methods : {
        fetchData(current = 1) {
            this.page = current
            api.getPageList(this.page, this.limit, this.searchObj)
            .then(response => {
                this.list = response.data.records
                this.total = response.data.total
            })
        },
        // 重置表单
        resetData() {
            console.log('重置查询表单')
            this.searchObj = {}
            this.fetchData()
        },
        //根据id删除角色
        removeDataById(id) {
            this.$confirm('此操作将永久删除该记录, 是否继续?', '提示', {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning'
            }).then(() => {
                return api.removeById(id)
            }).then((response) => {
                this.fetchData(this.page)
                this.$message.success(response.message)
            })
        },
        add () {
          this.dialogVisible = true//弹出框
        },
        //保存或添加
        saveOrUpdate() {
            if (!this.sysRole.id) {
              this.saveBtnDisabled = true // 防止表单重复提交
              //添加
              this.addSysRole()
            } else {
              //修改
              this.updateSysRole()
            }
        },
        addSysRole () {//添加
          api.sava(this.sysRole)
          .then(response => {
            this.$message.success(response.message || '操作成功')
            this.dialogVisible = false
            this.fetchData(this.page)
            this.sysRole = {}
          })
        },
        updateSysRole() {//修改
          api.updateById(this.sysRole)
          .then((response) => {
            this.$message.success(response.message || '操作成功')
            this.dialogVisible = false
            this.fetchData(this.page)
          })
        },

        edit(id) {
          this.dialogVisible = true//弹出框
          this.fetchDataById(id)
        },
        fetchDataById(id) {
          api.getSysRoleById(id)
          .then((response) => {
           this.sysRole = response.data
          })
        },
        // 当多选选项发生变化的时候调用
        handleSelectionChange(selection) {
          console.log(selection)
          this.multipleSelection = selection
        },
        //批量删除
        batchRemove() {
          if(this.multipleSelection.length == 0) {
            this.$message.warning('请选择要删除的记录！')
            return
          }
          this.$confirm('此操作将永久删除该记录, 是否继续?', '提示', {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning'
          })
          .then(response => {
            // 点击确定，远程调用ajax
            // 遍历selection，将id取出放入id列表
            var idList = []
            this.multipleSelection.forEach(item => {
              idList.push(item.id)
            });
            return api.batchRemove(idList)
          }).then((response) => {
            this.fetchData()
            this.$message.success(response.message)
          })
        }
    }
}
</script>